(4) Immerse the piston head and rings in clean
engine oil, slide the ring compressor over the piston
and tighten with the special wrench. Ensure posi-
tion of rings does not change during this oper-
ation.
(5) Install connecting rod bolt protectors on rod
bolts (Fig. 120).
(6) Rotate crankshaft so that the connecting rod
journal is on the center of the cylinder bore. Insert
rod and piston into cylinder bore and guide rod over
the crankshaft journal.
CAUTION: Do Not interchange piston assemblies
cylinder-to-cylinder or bank-to-bank.
(7) The arrow on top of piston must be pointing
toward front of engine (Fig. 127) and oil squirt hole
on connecting rod faces the major thrust (right) side
of the cylinder bore (Fig. 128).
(8) Tap the piston down in cylinder bore, using a
hammer handle. At the same time, guide connecting
rod into position on connecting rod journal.
(9) Install rod caps. Install nuts on cleaned and
oiled rod bolts and tighten nuts to 54 N·m (40 ft. lbs.)
Plus 1/4 turn.
(10) Install cylinder heads and oil pan. Refer to
procedures in this section.
Fig. 124 Piston Ring End Gap Position
1 – SIDE RAIL UPPER
2 – NO. 1 RING GAP
3 – PISTON PIN
4 – SIDE RAIL LOWER
5 – NO. 2 RING GAP AND SPACER EXPANDER GAP
Fig. 125 Check for Stretched Bolts
1 – STRETCHED BOLT
2 – THREADS ARE NOT STRAIGHT ON LINE
3 – THREADS ARE STRAIGHT ON LINE
4 – UNSTRETCHED BOLT
Fig. 126 Piston—Installation
Fig. 127 Piston Orientation
1 – ARROW FACES FRONT OF ENGINE
LH 3.2/3.5L ENGINE 9 - 135
REMOVAL AND INSTALLATION (Continued)
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